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Finding the Fourth Proportional to 395,960.38, 546,384.40 and 243,005.02

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Solution

The fourth proportional to 395,960.38, 546,384.40 and 243,005.02 is: 335,321.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,960.38 : 546,384.40 = 243,005.02 : x
  2. Step 2: Convert to fraction form
    395,960.38/546,384.40 = 243,005.02/x
  3. Step 3: Cross multiply
    395,960.38x = 546,384.40 × 243,005.02
  4. Step 4: Simplify right side
    395,960.38x = 132,774,152,049.69
  5. Step 5: Solve for x
    x = 132,774,152,049.69/395,960.38
  6. Step 6: Final answer
    x = 335,321.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.